Folding camp stove



H. C- HANSON Foumm cm? STOVE.

APPLICATION "LED OCT. '9, !92llh'issuwl \PI'. 4, 1922.

UNITED STATES HANS C. HANSON. OI ALBERT LEA, MINNESOTA,

ea rsn'r OFFICE,

ASSIGNOR TO AMERICAN GAS MINNESOTA.

FOLDING CAMS]? STOVEv Original No. 1,387,152, dated August 9, 1921, Serial No. 181,938, filed July 21, 1917.

reissue filed October 19, 1921.

To all m/mm. if lltfl l/ roneern Be it known that I. Plans llANsoX. a eitizen of the United States, residing at Albert Lea, in the county of Freeborn and State of Minnesota. have invented certain new and useful Improvements in Folding (amp Stoves: and I do hereby declare the following to be a. full, elear. and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relatesto improvements in Folding camp stoves. and more particularly to that tvpe employing a hydrocarbon burner. It ore rticularly, this invention relates to a stove which can he paelted in compact form and easily and quickly unfolded and adjusted for use, and which when unfolded and adjusted produces a simple and effective stove for cooking and heating purposes.

in the accompanying drawing part of this specification.

Fig. 1 is a plan of my invention when packed for transportation and the cover is removed Fig. 2 is a section of a detail of the burner taken on the line X-X of Fig. l,

Fig. 3 is a section of a detail of the receptaelo looking at the side through which the handle 39 is adapted to more;

Fig. 4 is a section of a detail of the receptacle when its body is erected on the cover;

Fig. 5 is a section of a detail looking towards the end through which the tube 47 is inserted Fig. (3 is an end view;

Fig. 7 is a section of a detail of carbon supply tank,

Fig. 8 is a perspective part of one of the burners; and

Fig. 9 is a longitudinal section through the stove assembled for use, said section bein r on a. reduced scale.

it the drawing, let A indicate the body of the easing, which is of rectangular form forming the hydroand resembles a receptacle of medium depth,

the bottom 2 of which is provided with a plurality of draft openings 3 through which air is free to pass upwardly into the receptacle to supply oxygen to the flames of the burners. Each corner of the rece iacleis provided with a movably dispbsed g 4 in Specification of Reissued Letters Patent.

Reissued Apr. at, 19132.

Application for Serial No. 508,893.

the form bf a vertical rod having an offset. or shoulder 5 at its upper end, said rod helm: slidably engaged in a tube 6 in the corner of the receptacle, said tube being seemed by rivets T or other suitable means to the casing and being provided with a longitudinal opening H or passage in its side through which the shoulder end of the rod iuav slide} freely. When the camp stove is folded the legs are slid upwardly and the shoulder I} of each lodged over the. upturned upper end 9 of the tube member in which the leg i held, the shank of said leg being turned into engagement, with said upper end. \Yhen the camp stove is unfolded each leg is moved into extended position by giving the same a quarter turn and sliding" it donnwaidly. While in lowermost. position the leg is turned and the shoulder 5 enters a key slot or lateral passage 10 in the tubular member where the leg is locked in extended position and prevented from receding npwm'dl v. in Fig. 3 the leg is illustrated in folded condition while in Fig. 4 it is locked in extended position as described. The. legs and their holding means are all similar in eonstrut tion, there being one provided in each cor ner oi the ieeelptaele. The upper portion oi the sides 11 and 12 of the receptacle are provided witha pair of horizontal longitude nal ledges 13, upon which rest a grate ll, said grate being made. out of a single rod formed into rectangular convolutions, the ends of said .C-OHVOllltiOIlS being adapted to rest on the ledges 13. as illustrated in Fig. 1. This grate is separable from the receptacle as also are. the legs. so that the parts can be separated and easily cleaned from time to time. A removable. cover B is pro vided on the receptacle, whieh ean he curely closed thereover by means of the. studs 15 onthe ends '16 of the receptacle, which are adapted to be sprung into engagement with the cover through openings 17 in the ends 18 of the cover, (see Fig. 3). When the stove isf in use and the (over renamed. the cover can be inverted and used as a tray tO/SHPINHT the extended legs of the: receptaele.

Disposed .Within the reeeptacle is a burner fixtureC formed with supports 20. which are rigidly secured to the bottom 2 of the receptacle 'by rivets or bolts 21. Tllefhurner fixture is in the form of a duct 22 having, upturned ends 23 and 24. The ends 23 and :24 are formed with horizontal burner bases .25 and 26. of burners D and E, resembling disk or circular plates. A burner cap on base number 25 is in the form of a ring member 27 having, radiating ribs 2.8 on its lower surface and radiating ribs 29 on its upper surface forming channels through which gas from the duct 22 may pass outwardly. Secured over the ring QT is a burner ca 29, which is formed by a plate having a s iallow centrally disposed cup 30, in which gasoline or other hydrocarbon liquid may be placed and ignited for heating the burner to start the eneration of gas. The outer peripheral e ges of the cap pieces 29* and the base member 25 are formed with inturned shoulders 31 which act as deflectors to direct the flow of gas through the man ncls between the ribs 28 and 29 and con;- mingle the constituent parts of the gas to form an effect-ire gaseous fuel medium. The cap member 29 is secured on the ring incur ber 27 and to the member 25 to hold said parts together by means of the screws 32. The burner E on the upturned end of duct 22 is similar in construction to the arts of the burner D just described. excepting that the cap piece 33 is secured over the ring member 34 and to the base member ill) by a single screw The supply of fuel mixture to the burner E is controlled by a valve 36, which is adapted to seat at 37 in the duct. and is rovided with a threaded valve stem 58 aving a key 39 slidably mounted thereon, said key being joined to the valve stem 38 by :1 lug; 1111C slot connection 44 whereby the key may be extended or receded through an opening -11 in the end of the receptacle A said hey being extended when it is desired to turn the valve and open or close the same. The valve stem 38 is threaded in a stopper 41 in one end of the duct.

Fuel mixture is admitted into the duct through an upwardly and longitudinally er cnding branch i disposed between the burners D and E. The sides of this branch l c (l by a removable cover member 42, aeeured in closed position by means ci tee bolt 43 1a 1-:l rover being provided so that the branch .uul duct may be cleaned at any time by moving it. Hydrocarbon such as gasoline under air pressure is supplied by the tank G, a suitable connci-tion or stopper 4% being:- provided through which the tank can be filled and air pressure applied by means of the pump 45 or other suitable means. A suitable supply nozzle is secured and connected with the tank by the threaded coupling ill. said nozzle being provided with a gas which has a coupling: member on its outer end, said coupling member being adapted to gem-rating tube 4i} be detachably secured in the branch member I and connected with the duct therein to supply the hydrocarbon mixture from the supply tank to the burners. The point at which the coupling 45 is attached to the branch lS (llS1N)5Qll so that the generating tube 47 will extend across and immediately above the burner l whereby heat from the burner either supplied by the burning gases from the fuel in the cup ill] or from the burner proper will start and continue the generation of gas in the tube before it is admitted into the duct L. The supply nozzle H has threaded therein the stem 49 of a valve fi which is seated in the coupling member l8. The valve stem is threaded in the nozzle member H and extends outwardly therefrom being provided with a handle 51 by which it can be turned. The ncxzle member passes through an open ing 52 in one of the end walls 26. said opening being formed with a key receiving slot 53, which admits :1 her 5% on the side of the nozzle member, so that when the supply titltli is adinsted to the burner by inserting the nozzle through the opening: :32 and applying the coupling 48 to the branch duct F, said parts can be locked with the key .34 against the inner face of. one (11' the walls of the re eptacle to prevent from being unintentionally detached from the burner fixture when in use. It will be noted that the burner cap 29 is provided with the usual perto 'ations innnediately be; low the gas generating tube l7. through which some of the gas may pass to produce a heating lame below, and in contact with the generator tube to heat the latter.

in us assuming the stove to be folded, the cover first removed and the legs tended and loclted in extended position and then placed with their lower ends upon the inverted cover. The supply tank after being removed from the receptacle is inflated by pumping air into it and is secured by its generating tube to the receptacle. A small amount of gasoline is then. placed in the cups of the burners and ignited. After the burners and generating tube have been heated by burning the gasoline in the cups the valve 50 is opened by turning the handle at. The gas generated by the generating tube is thus admitted into the duct from whence it passes outwardly through the burners and is ignited. The resulting flames continue the generation oi gas in the burner lube and in the duct. and as a result an c-fii ient heater is provided {or cooking and heating purposes by the burners. When dcsircd only one burncr need be operated. the valve 36 being provided for cutting oil the supply of gas to the burner l lv The parts of the device can easily and quickly be cleaned from time to time when desired bv separating them, K

upper end of the supply tankv In accordance with the patent statutes. 1 have described the principles of operation of my invention. together with the apparatus which I now consider to re n'esent the best embodiment thereof. but, desire to have it understood that the construction shown is onlv illustrative. and that the invention can be carried out by other m ans and applied to uses other than those above set forth within the scope of the following claims.

What is claimed is:

l. A folding camp stove having in combination a substantially rectangular casing having a perforated bottom. a stove having a'plurality of burners fixedly secured to said bottom, said burners being disposed wholly within said casing. legs at each corner of said casing adapted to be. received therein. said bottom having holes through which the legs are adapted to be extended when the stove is set up for use and'means on said casing for holding said legs extended.

2. The structure set'forth in claim 1. and a regulating valve for one of said burners comprising a threaded stem and a handle slidably connected to said stem so as to turn the same. said casing having an opening in one end through which the handlcjs adapted to be projected for controlling said burner from without the casing when the stove is in operation.

3. The structure set forth in claim 1 and a supplytank for a liquid fuel for said stove constructed and arranged to be carried in said casing at one side of. said stove.

4. The structure set forth in claim 1 and a supply tank for liquid fuel for said stove. means extending therefrom and adapted to be connected to said stovel said casing having an opening in one end to receive said means. a locking device on said means co-operating with said casing for preventing withdrawal of said means when connected to the stove.

5. The structure set forth in claim 4. and a. regulating valve carried by said means outside of said casing.

6. A folding camp stove outfit having in combination a substantially rectangular casing having a perforated bottom. a plurality of legs disposed in said casing. said casing having holes therein through which the legs are adapted to be extended and having means fo holding the legs in extended position. a

burner stove permanently secured to said hottomc'a fuel tank having a connection collduit thereon. said tank and connection being adapted to be disposed in said casing at one. side and one end. respectively. of said stove. said casing also beingprovided with an opening in one end to receive said connection when the stove is in operation with the tank disposed outside thereof. i

7. The structure set. forth in claim 6. said casing having a ledge near the upper edge wholly within said casing,

of its side portion, and a grid member adapted to be supported on said ledge below the top edge of the casing.

H. The structure set forth in claim 7. a flange cover adapted to tit over the top of the casing. and means on the casing engaging said cover to hold the same in position.

9. folding camp stove havin in combination a substantially rectangular casing having a perforated bottom. a stove'having a plurality of burners fixedly secured to said bottom. said burners being disposed below the top of said casing. legs at each corner of said casing adapted to be received therein, said bottom ha vmg holes through which the legs are adapted to be extended when the stove is set up for use, means on said casing for holding said legs extended. said casing having a ledge at the upper inner side there of. and a grate adapted to be supported'on said ledge.

10. A folding camp stove having in com bination a substantially rectangular casing having aperforated bottom. a sto've'having a plurality of burners fixedly secured to said bottom. said burners being disposed a regulating valve for one of said burners comprising a threaded stem and a handle slidably connected to said stem so as to turn the same, and adapted to be disposed in one position within said casing. said casing having an opening in one end through which said handle is adapted to be projected for controlling said burner from without the casing when the stove is in operation.

11. The structure set forth in claim 10. and a detachable fuel supply tank having a connection therein, said casing having an aperture therein through which sa'idconnection is adapted to pass to be connected to said stove.

12. A folding camp stove having in combination a casing, a burner stove permanently secured in said casing and disposed wholly within said casing. supporting means for said casing. a detachable fuel tank having a rigid connecting member attached thereto. said tank and member being adapted to be wholly disposed in said casing when detached. said casing havingan aperture through one wall thereof through which said connecting member is adapted to pass and be connected with said stove when the same is assembled for use with the tank disposed outside of said casing.

125. A folding camp stove having in combination. a casing. a stove having a plurality of burners secured in said casing and wholly disposed therein. a detachable fuel tank having a rigid vaporizing tube secured thereto. said tank and tube adapted to be. received in said casing when detached, said tube having a sliding connection co-oper- .ating with said stove and adapted to con- Beet the same theretowhereby said casing when the tank and connection can be quickly detached and dise with the tank located on d e of said casing. 14. A folding ceinp stoiffe hev'ingimcombination, a casing having "an aperture through one end thereof, ejburner stove permanent ly secured wholly Within "said casing and com rising a mixifig ehember 'adetaehable fue' tank and ai'i 'id vaporizing tube secured thereto adage be; bereceived in eteched, "a regulating vnlve betweenthetank and the en of 'sai tube being'adeptedto pas through said aperture in the casing endeaidtube having a sliding connection co-opereting with said store to connect the some to the mixing chamber whenthe stov'e'is 'sefi up for use.

15."'A' fo1ding camp stove-having in combinetion, a. casing; a burner shove permenently therein, one of the burners of which has. combined Eunereep and prime iii'g cup," detachable eltahk and. a rigid flaw. tube attached thereto, aidepte to v weaved in said casing when detached S m mm. having 'slidabl'y attachable nd detaiehnble connection with said stove and adapfiedfi'o be over said combined posed in said casing or etiiiched to the store 7 through is a adapted to be cap and primi cup when attached and the stove is assemb ed for use.

16. A folding camp stovehaving in combination, a; casing, :a. burner stove secured and wholly disposed therein, a. rid supsorted b said casing above sai stove, a

etachab e fuel tank and rigid-eonnection therefor adapted to be disposed when detached at one side and end, respectively,

said stove and under said grid.

17. A folding camp stgove having in combinetion a suhstalitiallyirectangnlar casing 40 having' draft openings therein, astove having a. 'p lurality ofj burners secured in said casing, means for supporting a grid above said bdr'ners,n fuel'tank having a rigid connecting member thereon member edapbedte passjhrough one end of said casing and be connected to said stove, and a refiilating "valve adapted-f0 project e other end of said casing to regulate said stove, whensaid stove is set up 50 for use, said fuel tank'and conneetion bein disposed in said casing witfi saidsfiove when not in use.

In testimony whereof I afiix. my signature.

HAHS- e, HANSON.

said connecting Certificate of' Correction.

It is hereby certified that in Reissue Letters Patent No. 15,325, granted April 4, 1922, upon the application of Hans (T. Hanson, of Albert Lea, Minnesota, for an improvement in Folding (lamp Stoves," errors appear in the printed specification requiring vorrection as follows: Page 4. line 14, claim 14. after the \Vul'd tube insert the comma and words mid tube, uml line 15, strike out the words said tube; and that the said Letters Patent should he read with these corrections therein that the same may conform to the revurd of the case in the Patent Oflice.

Signed and sealed this 8th day of August, A. D., 1922.

[ KARL FENNING,

Acting Commissioner of Patents. 

